.main_top{
    background-image: url("../page/background_main.png");
    background-repeat: repeat-x;
    width: 100%;
    min-width: 1180px;
    height: 998px;
}
.main_top_business{
    height: 850px;
}
.title_top{
    margin-top: 80px;
}
/*main_business_page*/
.main_business_page{
    width: 1140px;
    height: 430px;
    background-color: #fff;
    margin:140px auto 0 auto;
}
.main_business_page .page{
    display: block;
    width: 392px;
    height: 476px;
    margin: -22px 0 0 -12px;
    float: left;
    text-align: center;
}
.main_business_page .page:hover{
    background-image: url("../page/pitchOn.png");
}
.main_business_page .page span{
    display: block;
    width: 160px;
    height: 160px;
    margin: 80px auto 0 auto;
}
.main_business_page .page .project{
    background-image: url("../page/project.png");
}
.main_business_page .page .product{
    background-image: url("../page/product.png");
}
.main_business_page .page .operation{
    background-image: url("../page/operation.png");
}
.main_business_page .page:hover .project{
    background-image: url("../page/project_init.png");
}
.main_business_page .page:hover .product{
    background-image: url("../page/product_init.png");
}
.main_business_page .page:hover .operation{
    background-image: url("../page/operation_init.png");
}
.main_business_page .page p{
    width: 340px;
    margin: auto;
}
.main_business_page .page .page_title{
    color: #000;
    font-size: 24px;
    margin: 28px;
    font-family: microsoftyaheilight;
}
.main_business_page .page .page_main{
    color: #808388;
    font-size: 16px;
    font-family: 黑体;
}
/*main_business_downGuide*/
.main_business_downGuide{
    margin-top: 10px;
}
.main_business_downGuide img{
    display: block;
    width: 72px;
    height: 72px;;
    margin: -36px auto;
}